Automatic locomotive-controller.



PATBNTED AUG. 14, 1906.

J. E. STIBGELMBYER. AUTOMATIO LOOOMOTTVB CONTROLLER APPLICATION FILED .TUNE 16,'1905.

J' 01m E. Stegelrneyer UNITED sTAgrns' JOHN n. sTIEeELMEYER, o

OFFICE.

s' INnmNAPoLIs, INDIANA'.

AUTOMATIC LOC'OMOTIVE-CONTRLLER.

i No. 828,344. Specieation of lApplication tiled June 16,

lng is a speciiication.

' the train.

' ically' closed. The mechanism by which this l 'will' als the train service w conditions' serve to automatically set the brakesgfor instance, any reduction in the Ill-the operation of railroads it is found thatl many engineers are inclined te be care less and take chances in running past a signal which hasbeen s'et against them.

The object of my present invention is to provide automatic means by which when any attempt is made vto run past a signal which has beeny set against the train thebrakes of will be automatically set andthe motor-controller automatresu is accomplished is also so designed that the automatic closing of the throttle-valve o be accom lished by any action in ich would under present brake train-line either by means of theconductors 'valve or by reason of the breakin of the train.

opened when the engine is standing detached until` the service-pressure lhas been established in the brake service-lines,

he accompanying drawings illustrate my invention. Figure. 1 is a' detail in partial'vertical see tion oflthat portion of my device immediately .correlated ,with the throttle-valve lever and a diagrammatic illustration of a circuit-clos- `suitable detent 18, whicl ing device carried by the engine and a semaphore arranged adjacent the track. Fig. 2 is a detail on line -2 2 of Fig. 1, and Fig. 3 a detail of a portionof the actuating electric cir: cuit.

In the`.drawings, m indicates a cylinder within which is -mounted a piston 11, said piston :being provided with a pistonrod 12', which extends through one hea'd ofthe cylindex". The rod l2 is connected with one arm -oi a lever 13, the opposite arm of which is connected to a rod 14, provided at its 'opposite end with aiinger 15, which overlies the throttle-valve lever 16 and a bell-crank lever L 7f ivoted thereto. The throttle-valve 16- iso any usual iorm and is -provided with a i engages with the usual toothed segment 19. Lever 17 engages The construction is also sucht at l the throttle-valve cannot be Letters Patent. Patented Aug. 14, 1906.

1905. serai No, 265,668.

l the detent 18, so that a movement of rod 14 will serve to withdraw the detent IS from the l segment 19. ',lhrottle-valve lever 16 is con- ,lnccted by a usual link 2() with a throttlevalve 21.

1() is a pipe 25, which connects through a four-way valve 26 with the a ir-brake pipe 2T.

l/alve 26 has secured to itsl stem an arm 28, which is normally held by means o' a detent l 29, which carries an armature. which may be al'ected by an electromagnet 30, the arrangement being such that when the detent 29 is withdrawn from arm 28 the valve `will be swung to an angle of about ninety degrees bvmeans of alight spring 31. Leadinglrom thxx casing of valve 26 is a train-line exhaust-pipe 32 and arwhistle 33. v

Magnet is'ineircuit with a trolley 35 on one side and a spring-p" essed plunger 36 on thc other side, said plunger being yieldingly' urged into Aengagement 'with' a collar 37, clamped upon the axle of one oi: the pony trucks 39. The main rail 40, upon 'which the wheel 39 runs, is connected through a battery41 w'tha plate42, carried by the semaphorefpost 43, while the seinaphore-arm 44 crries a' contact member 45, which is adapte. 42 when the semaphore-arm is set against the train. The terminal 45 is connected by a wire 46 with a' short third rail 47, arranged in` position to be engaged by the trolley`35.v

T .he piston 11 is normally arranged in that endy of cylinder 10 oppositef'from that shown vin the drawings by Leading into one end of cylinder" to be brought into contact with the plate' means oi" a spring 50 or and this spring is.some\.vhat lighter than the force exerted by normal train-line pressure upon the piston Il.

The operation is as follows: lVith the engine at rest and before 'theair-pressure has been started spring 50 holds piston 1l to the left end of cylinder 10, and this position results in such position of rod 14 as will prevent any movement of the throttle-valve lever 16 toward open position except .upon overcomin'g the forcee? spring .50,v and even if this spring be overcome itis impossible to set the throttle-valve leverat any open position, for the reason that the detent 1 of all possible engagementl with the ratchet As soon as a sufficient' train-line pressure in theairebrake piping has been produced, however, this pressure entering cylinder 10 through pipe 25 will move piston 11 against the action of spring 50 to the position lOO 8 will be held out IIO shown in the drawings, whereupon it becomes possible to shift the throttle-lever with perfeet freedom. lf a semaphore be set against a train, then when trolley 35 comes into contact with the third rail 47 of this semaphore the magnet 30 will be energized and detent 29 withdrawn from arm 28, whereupon spring 31 will shift the valve 26, so as to con# leak in the brake-pipe or by reason of a break in thel train, there is any automatic setting of the brakes, there will be the same reduction of pressure within the cylinder 10, thus permitting, the vspring to act to close the throttle-valve. it willbe apparent that byl holding the throttle-valve-closing mechan ism in open position by means of the trainline pressure and operating this mechanism by independent means it is possible toA cause the automatic closing of the throttle-valve by anyof the actions which now ordinarily result in the setting of the brakes.

l claim as my invention- 1. ln an automatic engine-controller, the combination with the throttle-valve and air- 'brake mechanism, of means other than the air-pressure for automatically throwing the throttlewalve to closed position, pressure of the brake-mechanismfcontroiled means connected with the air-brake mechanism for normally preventing the automatic action of said closing means, and means opera-ble by external means for automatically eliminating the preventing means. y

2. ln an automatic engine-controller, the' -combination with a throttle-valve and airbrake mechanism, of a cylinder and piston end of said cylinder andthe airbrake servicc- A pipe, means for normally urging the piston 1n a direction opposite to the movement caused die-tev connections between said rpiston and by the brake servicefpressure, and intermethe throttle-valve, whereby the throttlevalve ismoved to closed position by the ac- .tion of said automatic means.

3. In an automatic engine-controller, the combination with the throttle-valve and airbrake mechanism, of a cylinder and piston mounted. therein, a f valved connection between one end ci said cylinder and the airbrake service-pipe, means for normallyurging the piston in :redirection opposite to the moveL ment caused by the brake service-pressure, intermediate' connections between said pis# ton and the throttle-valve, whereby the throttle-valveis moved to closed position by the action of said automatic means, a valve in the service-pipe of said cylinder, and means controlled bv the' movement oi the train for automatically shifting said valve to permita reduction of service-pressure in said cylinder.

cation of motive. power thereto, and an airbrakel mechanism, ci means other than-the air-pressure of the brake mechanism for au tomatically reducingr the application of motive power to the vehicle, pressure-controlled i means connected with the air-brake mechanaction of said reducing means'and means operable by external means for automatically causing the elimination of 'the preventive action of said pressure-contrcliedineens.

In an automatic engine-controller, the combination with. the throttle-vaive and airmanipulatmg sai throttle-valve, means other than, the pressure of' the air-brake mechanism for closingthe throttle-valve in the absencefofsuiiicient pressure in the air-- brake mechanism, and .pressure-controlled means connected with the airbrake nischen` ism for permitting manuai manipulation of the throttle-valye-when said pressure-cony trolled means .is under the eiect oi the airbrake-meclianism pressure.' y In witness whereof I have hereunto setrny .hand and .seahat Indianapolis; Indiana, this 12th day 'of June, A. D. 1905. i'

' A Jolie E. encontrarte.. [-L. e]

i Witnesses: i 'ARTHRl/. Hoon, L 'JAMES` A. WALsH.

ism for normally preventing the automaticl fi. The combination, with a motor-vehicle f having a controller for controllingthe appli`A brake mechanism, of means for manually 

